Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 7361d0c4619659a332a3cddc553a6e32292488c4
      
https://github.com/WebKit/WebKit/commit/7361d0c4619659a332a3cddc553a6e32292488c4
  Author: Tim Nguyen <[email protected]>
  Date:   2026-03-03 (Tue, 03 Mar 2026)

  Changed paths:
    A 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-backdrop-expected.html
    A 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-backdrop-ref.html
    A 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-backdrop.html
    A 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-before-after-expected.html
    A 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-before-after-ref.html
    A 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-before-after.html
    A 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-first-letter-first-line-expected.html
    A 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-first-letter-first-line-ref.html
    A 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-first-letter-first-line.html
    A 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-highlight-expected.html
    A 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-highlight-ref.html
    A 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-highlight.html
    A 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-selection-expected.html
    A 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-selection-ref.html
    A 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-selection.html
    A 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-target-text-expected.html
    A 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-target-text-ref.html
    A 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-target-text.html
    M LayoutTests/platform/ios/TestExpectations
    M Source/WebCore/css/parser/CSSSelectorParser.cpp

  Log Message:
  -----------
  Support chaining pseudo-elements after ::picker(select)
https://bugs.webkit.org/show_bug.cgi?id=309052
rdar://171604109

Reviewed by Anne van Kesteren.

This commit starts supporting combinations like:
- ::picker(select)::before
- ::picker(select)::after
- ::picker(select)::backdrop
- ::picker(select)::first-letter
- ::picker(select)::first-line
- ::picker(select)::highlight(...)
- ::picker(select)::target-text
- ::picker(select)::selection
- ::picker(select)::grammar-error
- ::picker(select)::spelling-error

Some demos already use ::before/::after/::backdrop, so these will be fixed with 
this change.

Tests: 
imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-backdrop.html
       
imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-before-after.html
       
imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-first-letter-first-line.html
       
imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-highlight.html
       
imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-selection.html
       
imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-target-text.html

* 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-backdrop-expected.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-backdrop-ref.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-backdrop.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-before-after-expected.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-before-after-ref.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-before-after.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-first-letter-first-line-expected.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-first-letter-first-line-ref.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-first-letter-first-line.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-highlight-expected.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-highlight-ref.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-highlight.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-selection-expected.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-selection-ref.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-selection.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-target-text-expected.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-target-text-ref.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/html/semantics/forms/the-select-element/customizable-select/select-picker-pseudo-target-text.html:
 Added.
* LayoutTests/platform/ios/TestExpectations:
* Source/WebCore/css/parser/CSSSelectorParser.cpp:
(WebCore::isSimpleSelectorValidAfterPseudoElement):

Canonical link: https://commits.webkit.org/308556@main



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